linux-kernel - [PULL 00/14] Xtensa updates for 4.19

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Date:   Wed, 22 Aug 2018 11:50:34 -0700
From:   Max Filippov <jcmvbkbc@...il.com>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org, linux-xtensa@...ux-xtensa.org,
        Chris Zankel <chris@...kel.net>,
        Max Filippov <jcmvbkbc@...il.com>
Subject: [PULL 00/14] Xtensa updates for 4.19

Hi Linus,

please pull the folowing batch of updates for the Xtensa architecture
for 4.19.

The following changes since commit 1ffaddd029c867d134a1dde39f540dcc8c52e274:

  Linux 4.18-rc8 (2018-08-05 12:37:41 -0700)

are available in the git repository at:

  git://github.com/jcmvbkbc/linux-xtensa.git tags/xtensa-20180820

for you to fetch changes up to 35d231db53a60b76e218a56da30ad071d4717b56:

  Merge branch 'xtensa-dma-fixes' (early part) into xtensa-fixes (2018-08-20 13:24:24 -0700)

----------------------------------------------------------------
Xtensa improvements for v4.19:

- switch xtensa arch to the generic noncoherent direct mapping operations;
- add support for DMA_ATTR_NO_KERNEL_MAPPING attribute;
- clean up users of platform/hardware.h in generic Xtensa code;
- fix assembly cache maintenance code for long cache lines;
- rework noMMU cache attributes initialization;
- add big-endian HiFi2 test_kc705_be CPU variant.

----------------------------------------------------------------
Christoph Hellwig (1):
      xtensa: use generic dma_noncoherent_ops

Max Filippov (14):
      xtensa: support DMA_ATTR_NO_KERNEL_MAPPING attribute
      xtensa: platform-specific handling of coherent memory
      xtensa: limit offsets in __loop_cache_{all,page}
      xtensa: increase ranges in ___invalidate_{i,d}cache_all
      xtensa: rework noMMU cache attributes initialization
      xtensa: drop unused {CONFIG,PLATFORM}_DEFAULT_MEM_SIZE
      xtensa: rework {CONFIG,PLATFORM}_DEFAULT_MEM_START
      xtensa: move PLATFORM_NR_IRQS to Kconfig
      xtensa: drop unneeded platform/hardware.h headers
      xtensa: drop variant IRQ support
      xtensa: make bootparam parsing optional
      xtensa: clean up boot-elf/bootstrap.S
      xtensa: add test_kc705_be variant
      Merge branch 'xtensa-dma-fixes' (early part) into xtensa-fixes

 arch/xtensa/Kconfig                                |  60 ++-
 arch/xtensa/boot/boot-elf/bootstrap.S              |  19 +-
 arch/xtensa/configs/nommu_kc705_defconfig          |   2 +-
 arch/xtensa/include/asm/Kbuild                     |   1 +
 arch/xtensa/include/asm/cacheasm.h                 |  69 ++-
 arch/xtensa/include/asm/dma-mapping.h              |  26 -
 arch/xtensa/include/asm/initialize_mmu.h           |  42 +-
 arch/xtensa/include/asm/irq.h                      |  21 +-
 arch/xtensa/include/asm/kmem_layout.h              |   6 -
 arch/xtensa/include/asm/page.h                     |   5 +-
 arch/xtensa/include/asm/pgtable.h                  |   8 +
 arch/xtensa/include/asm/platform.h                 |  27 +
 arch/xtensa/include/asm/processor.h                |   1 -
 arch/xtensa/include/asm/vectors.h                  |   1 -
 arch/xtensa/kernel/head.S                          |   2 +
 arch/xtensa/kernel/irq.c                           |   1 -
 arch/xtensa/kernel/pci-dma.c                       | 193 +++----
 arch/xtensa/kernel/setup.c                         |  10 +-
 arch/xtensa/kernel/vmlinux.lds.S                   |   2 +-
 .../platforms/iss/include/platform/hardware.h      |  29 --
 .../platforms/xt2000/include/platform/hardware.h   |  11 -
 .../platforms/xtfpga/include/platform/hardware.h   |   9 -
 .../variants/test_kc705_be/include/variant/core.h  | 575 +++++++++++++++++++++
 .../test_kc705_be/include/variant/tie-asm.h        | 308 +++++++++++
 .../variants/test_kc705_be/include/variant/tie.h   | 182 +++++++
 drivers/irqchip/irq-xtensa-mx.c                    |   2 -
 drivers/irqchip/irq-xtensa-pic.c                   |   2 -
 27 files changed, 1300 insertions(+), 314 deletions(-)
 delete mode 100644 arch/xtensa/include/asm/dma-mapping.h
 delete mode 100644 arch/xtensa/platforms/iss/include/platform/hardware.h
 create mode 100644 arch/xtensa/variants/test_kc705_be/include/variant/core.h
 create mode 100644 arch/xtensa/variants/test_kc705_be/include/variant/tie-asm.h
 create mode 100644 arch/xtensa/variants/test_kc705_be/include/variant/tie.h

Thanks.
-- Max